Age

This template returns the number of full years between two specified dates. If the second set of parameters is not included, it will return the number of full years between a specified date and today's date.

Syntax:

{{Age|year|month|day|year2|month2|day2}} or

{{Age|year|month|day}}

Examples:

{{Age|1989|4|21|2011|2|26}} returns "21"

{{Age|1989|4|21}} returns "35"

{{Age|1889|9|23}} returns "135"

When using this template to calculate a person's age at death or a person's age on a specified date (rather than the person's current age), please substitute it into the page (see Help:Substitution).

Example: {{subst:Age|1989|4|21|2011|2|26}}

When entering dates before the Common Era, use astronomical year numbering: 1 BCE is represented by 0, 2 BCE by -1, 3 BCE by -2 etc. For example, the following expression returns the number of full years elapsed since the accession date the first Emperor in Japan, which took place on February 11, 660 BCE:

{{Age|-659|2|11}} returns "2684"

(BCE is exactly the same as BC, so February 11, 660 BCE is also February 11, 660 BC)

Note:

This template does not check for incorrect input:

{{Age|2000|4|22|2015|8|32}} returns "15" (surplus days do not count as extra months)

{{Age|2000|4|22|2015|13|7}} returns "15" (surplus months do not count as extra years)

{{Age|1900|2|29}} returns "125" (1900 is not a leap year)

This documentation is copied from The Loud House Encyclopedia.